Error box showing license information?

We moved from Aspose.Email version 4.8.0 to 21.0.03 to support oAuth.
When got the license file updated accordingly.

We also use Aspose to convert documents to multipage tiff. For some odd reason, after updating the email component to 21.0.3 and using the new license file, we started getting the following error box every time we try converting the document to .tiff. Also, the weird thing is it only comes for the first document, and the subsequent document gets converted fine without the error pop.

The error is as follows, it seems like it is showing binary image file.

src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAhMAAAP6CAIAAACl/UiNAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAASdEVYdFNvZnR3YXJlAEdyZWVuc2hvdF5VCAUAAP+HSURBVHhe7J0FeBRJwrDvu/vvbu9uXVhjWXd33CEQLAR34iFG3N3dPSHu7u7u7pnoJBnNeMZn+q+emYTAArvc3S7cbr08D0+qq7paprveku7qP4lEIqEEgQQ+n8/j8bgSOBwOm81ekcBisZhMJkMCXQJNAhUCgUAg/8tQKBTZXxKkZbu0nJeW+aDwBwqQugBIAahBZo67tAEipNpYE4Y0L5Ap2MayBLIEEgQCgUD+lyESibK/JEjLdmk5LxWJ1CJr/gBq+NNag2O9NqRNDZAOpJYKQ6oKkCnYBoFAwOPxOBxuScIiBAKBQH4XSEt1ULyDQh4U9VKRSBslQAfS9gewA2qOn2pD2tQAzgDCkNoC5CKVxMLCAhaLnZ+fn5ubm5UwA4FAIJDfBdJSHRTvoJAHpT0o84FFgEKk/gBSkMrjT5JuqjvMIW1tgBQgKVgBrAlUATICmU5PT09NTWEwmMnJyYmJiXEJYxAIBAL532R0FWlQWqqD4h0U8qCoB2U+EAlQAPAHaEWAtoRUHqg5ftrgAK0SkAJoQx8CgUAgf3hAE0QqD2nL40/3HN6gUqlEIhG0NsAKCAQCgUD+wAARTE1NgZYHHo8nk8lAELfNIdUGaHCAlgiwCmhwAMlAc0AgEMgfHCCCiYmJubm5paUl0KhYXl5GzXFXg0M6wgEaJrOzs9AcEAgE8gcHiGB0dHR6enqt2fGnnzY4QEuERCItLi6CdNAcEAgE8gcHiGBoaAiDwczPz0ubHag51j+JS6fTpV1VCwsLU1NT0BwQCATyBweIYGBgYGJiYnZ2FqgBNDv+JO2qkvZTgQaH9KkqEAFaJcAw0BwQCATyBweIoK+vb2xsTNphhcPhUHOsjXAAc6wNcszNzQHDQHNAIBDIHxwggt7e3pGRkbUOK5k5pCMcoMEhHeQAEaBVMj4+Ds0BgUAgf3CACLq7u4eHhycnJ6UdVn9aG+SQmoNCoUjf5JiZmQFtE2gOCAQC+YMDRNDV1TU4OAiaE0ANWCwWNYe0qwpog0ajSc0BlDI9PT06OgrNAYFAIH9wgAg6OzsHBgakQx3z8/N3m0M66QhQytTU1MjICDQHBAKB/MEBImhvb+/v7wfNCaC

Hello @shawshank1977.

Thank you for reporting your case.

Can you, please, provide us with a file and a code sample for investigation on our side?